68 UNIVERSITY OF MISSOURI STUDIES [2l6 



60. MTJNROA Torr. FALSE BUFFALO GRASS. 



100. M. squarrosa (Nutt.) Torr. MUNRO'S GRASS. 



Dry plains and mesas, 5100-6000 ft. (Daniels, 359). Also 

 at Lafayette (Rydberg). 



NORTH DAKOTA to ASSINIBOIA; TEXAS to ARIZONA. 



61. KOELERIA PERS. 



101. Koeleria cristata (L.) Pers. [K. nitida Nutt., as to 

 some of the forms]. PRAIRIE-GRASS. 



Throughout below IOOOO ft., but especially common on 

 the foothills, 5100-10000 ft. (Daniels, 133). 



ONTARIO to BRITISH COLUMBIA; PENNSYLVANIA to CALI- 

 FORNIA. 



62. ERAGROSTIS Beauv. STINK-GRASS. 



102. E. major Host. SKUNK GRASS. 



Waste places and along railroads, 5100-6000 ft. (Daniels, 



588). Also at Longmont (Rydberg). 

 EUROPE, thence to NORTH AMERICA. 



103. E. pectinacea (Michx.) Steud. PURPLE STINK-GRASS. 

 Meadow Park, 6500 ft. (Rydberg). 



MASSACHUSETTS to SOUTH DAKOTA : FLORIDA to TEXAS 

 and COLORADO. 



63. EATONIA Raf. EATON GRASS. 



104. E. robusta (Vasey) Rydb. [E. obtusata robusta Vasey]. 

 STOUT EATON GRASS. 



Along streams and springy canons, 5100-7000 ft. (Daniels, 



NEBRASKA to WASHINGTON; NEW MEXICO to ARIZONA. 



105. E. obtusata (Michx.) Gray. BLUNT-SCALED EATON 



GRASS. 



About Boulder, 5100-6000 ft. (Rydberg). 

 MASSACHUSETTS to MONTANA; FLORIDA to ARIZONA. 



1 06. E. Pennsylvanica (DC.) Gray. PENNSYLVANIA EATON 



GRASS. 

 Deep mountain canons, 5600-7000 ft. (Daniels, 718). 



